Here's a web site that sells Ornithine by itself.

http://www.herbalremedies.com/ornithine.html

I also found Dr. Clark's web site where she says that ornithine alone will help with sleep, but arginine makes you alert. So, if
you buy them together in a capsule, it will not help with sleep.


Here is Dr. Clark's web site & her comments on Insomnia:

http://www.drclark.net/info/sleep.htm
"I believe these problems are caused by a high ammonia level in the brain. This belief is based on two observations. Ornithine, an ammonia reducer, induces a wonderful sleep in sleep-deprived persons. It is also observed that after killing parasites, which produce ammonia, sleep is much improved. Our metabolism does not produce ammonia. We produce urea which is excreted by the kidneys along with water and then called urine. When we are parasitized, our metabolism is burdened with ammonia, though, made by the parasites.

It is known that ammonia is a strong brain irritant. In fact, a person can be awakened from a coma by being made to smell ammonia "smelling salts." Omithine reacts with ammonia, mopping it up like a sponge.

***Arginine, another amino acid, also reacts with ammonia, but does not put you to sleep.**** Arginine results in *alertness* and therefore should be used in the morning, when needed. Ornithine, given at bedtime, may take 1/2 hour to do its magic. Both are perfectly safe, since they are natural to your body, and a food constituent.

Start by taking two ornithine capsules (each 500 mg.) on the first night. Take four the next night. Take six the night after and choose the dose you like best. Sometimes it takes five days to "catch up" on everything that needs to be done for the brain and get you sleeping. Meanwhile, of course, you are planning to kill your parasites and be done with insomnia in the most effective way of all." (continued information about sleep in on the web page)

Annie